Demountable rim



Sept. 15, :924. www@ J. N. MCQUEEN DEMOUNTABLE RIM Filed Nov. 10 1922 2 Sheetfv-Shee 1 J. N. MCQUEEN DEMOUNTABLE RIM Filed Nov. 10, 1922 mit 151%.

.2 Sheets-Sheet. 2

ifllllllll Il!! l Queen Patented Sept. i6, i924,

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the? Dmvronn'rennn ein.

Application led November 10, 1922. Serial 'o. EGM-3L of a tire upon a. Vehicle Wheel, so that the.. tire may be best protected against uuu-ry to parts thereof.

A further and important object. of this invention is the provision of e demountahle rim which embodies practicaladvantages over the type of demountalole. rim described and claimed in my copendim@r application, Serial No. 523,477, liled Dec. 19, 1921.

A further object of'this invention is the provision of u demountnhle rim which embodies a pair of telescopic sections, und includes a, novel means` tor locking' the sections together, said means being easily nr ranged, Without the 4necessity ot undue manual exertion, to permit detachment of the sections.

Other objects und advantages of this in vention will be apparent during the course of the following detailed desoription.

In the accompanying drawings, forming; a part of this specification, und wherein similar reference characters designate corresponding parts throughout the several. views.

Figure l is zt fragmentary side elevation of a, vehicle Wheel embodying the improved demountuble rim construction.

Figures 2, 3 and 4 are fragmentary transverse cross Sectional views, showing"eooperating details of this invention.

Figure 5 is :i fragmentary inside View of the sections of the improved demountnble rim, showing them in their cooperativo posi-- tions.

Flgure 6 is a 'fragmentary perspective View, showing the manner in Winch the .sec-

tions of theden'iountzible rim are relat'iifely detached.

tion G, 'the same Figure Z is e perspective the interlocking ineens for the seetions oil' the demounteole rim.

In the drnavings, wherein 'for the purpose of illustration is shown hot vthe *om erred embodiment or" this invention, the le r A,

i en designates n vehicle 'wheel upon whim n. tire B is adapted to 'he positioned, oy means ot the impr ved oenionn'tehle rire construction C.

Referring to the. yehieie fheei A, the seme muy be of any preferire l e, disc, or "or purposes et illustration, the reniele vheei A includes n huh if), spokes il., "folly 19;. The '.ilif, hand i3 f e :vardly positioned up-i l the cir the ,telly l2 in :iny of `he Weil lino nietv .Y i the like; 'N

ods, as hy shrinui n ,D

this telly bend l. "din ily ineii the .laterally end ouhy t .neil ne itable `rim engagi are carried hy Atne shank portions 'through the trensi'erst folly l2., the heads i8 er nhly overlying the ins 'l'elly i2, Whereas the 2() ot the shunt outside suri'nre of se i just uhlyreeeive nnts the connection with the eleinj-, n'iount-:ihle rim eonr'itru' suhsequently L riheii. rl'he tire it may he o.' noter, suoli is siiien' type. i iifwiil he olE the mennintie typ the inner tuhe 25, which on posed intermediate ,the heads 215 finzi, the tire B, und rests upon the rim. een

-tion C. The pneun atie B also ineiudes the vulve 30, whim extends rediaiiiy the deniountnhle rim ermetruct on through n suitzihie inner-ture (not shown) oit the folly l2.

Referring to fhe improved rim'entretiene-,

include.- the teieseeiie enter and inner rim secti" sind ESG-respectively, which respectively neluee the. n nulnr seeting flanges 37 and ,e tor eoopern tive sliding engngemen these portions l? und 38 being s'ostn-.u ielly of the Cil width, and being disposed in overlapping relation for substantially their entire widthi The outer rim section 35 is preferably provided upon its outer circumferential edge with the tire retaining iange 39, which may be of any formation, either the clincher'type or outwardly flared type. The inner circumference 40 ofthe section 35 has the Wedge shapedlocking lugs 45 mounted thereon, in rigid manner, as by rivet shank portions 46.

' These locking lugs 45 are arranged in'spaced relation about the inside circumference 40, presenting abrupt shoulders 17 facing in the directionof the tire retaining ange 39, and providing inclined sliding faces 48 slanting inthe directionoi the` circumferential marginal edge 4Q. IThese wedge shaped locking ,lugs 45 are connected to the rim section in such manner as to not weaken the saine, and are preferably disposed nearer to the .tire retaining flange 39 than the other inarginal edgeeltl.. rihe cooperating annular portion 38 oi the inner rim section 36 is prei4 erably provided with polygonal shaped openings 50, which extend radially thered 'through and are adapted. for receiving the locking lugs l5 when the sections 35 and 3S are iu interloclred relationu A .tire retaining' flange 51 is also provided upon the inside c ircuinerential.'margin of the rim section 3G. 1liVlien the sections Szll'and 36 are disposed in interlecle i relation, as by engagement et the clamps flo in tl i" apertures 50, the tire re taining' ,3e and 5i are opposit'ely disposed to provide n annular groove' for refeption of ic tire i3, in the well' iin Y 'ler to provide' a ple and y o means tor the attachment et the rim construction (j to the vehicle wheel it is prefer" d that the flanges 30 he provided upon the inner rim section 36, which entends radially inwardly of the opening defined by said section 36, adjacent the circumferential edge 61. thereof. These locking flanges 60 are preferably of integral and rigid formationwith the material which the :ner run section is constructed, and es, have a transverse aperture x62 therethrough, adapted iur receiving the v screw tlirczulcd shan Qt) of a bolt 15.

.C the apertures 50 are disposed adjacent ,king lues' 60, it is preferred that the 'f ucl( inwardly from the outer vunrtcrcntial edge 5l of the inner i'im section f'l, on either side ot the locking lugs 60, and which construction is provided to permit some 'flexing of the inner rim .section 3G adjacent the apertures 50, to permit detachment ot theI rim sections,

ln f. poration, the deniountablc rim sections aal 36 may be tclescopically slid so that the tire li mounted upon the oody portion 37 oi' the outer rim sect ion 35, so that the inner tube is {flisposed thereon against liability o being pfu'ufliedv Whenthe sections 7() hein(r irovided about the section 3G nl vpointed end 76 and a hand engaging loop and 36 are entirely assembled, the locking lugs will, of course, be seated in the aper- 'tures 50, and the shoulders 47 engage niarginal edges of said apertures to prevent liability of accidental detachment of the rim sections, substantially as is illustrated in Figure 3 of the drawings. lVhen in its assembled position, it is to be noted, that due to the fact that the locking lianges are struck and bent so that the plane thereof lies inwardly of the plane of the outer niarginal edge 61 of the inner section 36, apertures (S8 radially disposed through the annular seating portion 37 oi the outer section 35 adjacent the tire flange 39 will be exposed adjacent eaclrof the locking flanges GO.

ln assembling the demountable rim construction C and the pneumatic tire B upon the wheel folly 12, the assembled structru'e axially slid over the vehicle Whe-cl 'lcliy 5 band 13, unt-il the tire retaining liange ill' of the inner rim section 36 is seated up n the flange le@ ot' said telly band 13. ln connection with the mounting of the deniountable rim structure C, to prevent radial play olf the saine upon the vehicle rim il, it is preferred to crimp the annular portion 5V' oi the inner rim section 3G, in if -shaped man ner, as at a plurality of these cri i bulge inwardly in wedge manner, se tl the inclined inner surfaces thereof ride cve the outer marginal portion oi' the telly hand 13, as the rim C is slid onto the telly w" il, substantially as is illustrated-in and whereby any liability of radial Y ci the rim upon the telly band l3iis ol li! ated. When vthe demountable rim C thus tar been assembled upon the velu wheel A., it can readily be understood that the radially and inwardly extending locking i'langes tdwill b e disposed adjacent the outer side surfacc`21. of the telly 12, so'that tue screw threaded ends 20 of the bolts 15 are extended through the transverse openings Gil. Upon application ot' the nuts 22, the langes tl() will be securelyA and effectively locked tothe felly 12, against any liability oi" axial or circumferential movement ,with respect t-hcwheel A.

ln connection with the detachment et the outer and inner Sections 35 and 36, it is te be noted that a .special type of tool has been provided, which includes a tapered portion 77. These tools 77, of which p 1r rality are provided, are to be cooperativi used in connectmn with the disco nec-tion movement of the rim sections 36. Thus, one of the tools 75 is so die that the pointed end (6 thereolE eng through a radial opening 68 or the c rim. section rlhe second of the `so disposed that the shank ,68, is utilized as a lever, whereby the shank portion 79 thereof engages against a locking iiange 60, as a ulcrum, and by which means the sections 35 and 36 may be laterally slid for relative disengagement. This operation is, of course, continued for each locking flange 60, and the various locking lugs 45,

.until the sec-tions 35 and 36 have been unlocked throughout their entire circumferences1 In order to accommodate the valve 30 of the tire B, the annular portions 37 and 38" of the outer and inner rini sections respectively, are provided with slots 80 and 8l respectively, which extend inwardly from the opposite circumferential edges thereof,

so that 'when the Sections 35 and 36 are in assembled relation, they will provide a. circular opening for reception'of the valve stem of the tire B, thus obviating the necessity for inserting the valve stem through a hole in the rim in the ordinary manner.

From the foregoing description of this.

form of invention herein shown and described, Without departing 4:trom the spirit 45 of the invention or the scope of the claims.

I claim: a n 1. As an article of manufacture, a demountable tire rim section having apertures extending radially ,therethrough for .receiving locking lugs of a second rim section and being slotted transversely inwardly from a circumferential edge oil the same adjacent said apertures to permit radial liexing of the apertured portion of the rim section.

2. As an article of manufacture, a demountable rim section providing an annular wheel .engaging portion havingl substantially tl-shaped crimps extending radially inwardly of the inner periphery thereof, and a tige seating liange annularly extending about one edge of said Wheel engaging portion.

3. As an article of manufacture, a Wheel rim construction comprising a pair of sections each including annular body portions adapted for relative overlapping for disposition about a Wheel, means for connecting said body portions of the sect-ions, said sections at the outer annular edges thereof having tire seating flanges thereon, means carried by the body portion of the inner section for .securing the same to awheel,'said.

inner section having substantially V-shaped crimps extending 'from the inner periphery4 thereof.

4. As an article of manufacture, a demountable rim comprising an outer section having Wedge lugs oextending inwardly of the inner circumference thereof, and an inner section having seatsl for receiving said lugs to detachably connect said sections, said inner section adjacent said seats being transversely slotted to permit exing thereof to said sections.

facilitate assemblage and detachment of 85 50i-IN N. MCQUEEN. 

